Function handleModeChange

packages/agentflow/src/atoms/ExpandTextDialog.tsx:71–79

(_: React.MouseEvent<HTMLElement>, newMode: EditorMode | null)

    }, [localValue, onConfirm])

    const handleModeChange = (_: React.MouseEvent<HTMLElement>, newMode: EditorMode | null) => {
        if (!newMode || newMode === mode) return
        // When switching to Source, flush the editor's current state to markdown so the
        // textarea shows markdown rather than a raw HTML string (Gap 3 fix — mirrors PR #6021).
        if (newMode === 'source' && editorRef.current) {
            setLocalValue(unescapeXmlTags(getEditorMarkdown(editorRef.current)))
        }
        setMode(newMode)
    }

    const isRichText = inputType === 'string'